Improvement



1. GRIFFIN.

Spring Bots.

Patented April 8, 1873L Witness Attorneys.

AM. PHDTO-IITHOSRAPHIC C0. N X(0SBORNE. S PROCESS."

. NITED STATES PATENT OFFICE.

THOMAS JEFFERSON GRIFFIN, OF BROOKLYN, NEW YORK.

IMPROVEMENT INSPRING-COTS.

Specification forming part of Letters Patent No. 137,675, dated April 8,1873; application filed February 21, 1873.

To all whom it may concern:

Be it known that I, THOMAS J. GRIFFIN, of Brooklyn, in the county ofKings and in the State of New York, have invented certain new and usefulImprovements in Spring'Oots and do hereby declare that the following isa full, clear, and exact description thereof, reference being had to theaccompanying drawingand to the letters of reference marked thereonmaking a part of this specification.

The. nature of my invention consists in the construction and arrangementof a spring-cot and bed-bottom, as will be hereinafter more fully setforth.

In order to enable others skilled in the art to which my inventionappertains to make and use the same, I will now proceed to describe itsconstruction and operation, referring to the annexed drawing, in which--Figure 1 is a perspective view, and Fig. 2 is a longitudinal verticalsection, of my invention. Fig. 3 is an enlarged perspective view of oneof the slat-supporting springs and Fig. 4 shows a part of one of thelegs. I

A represents theframe of my cot made of suitable dimensions, and the endpieces made either inclined, as shown, or vertical, like the sidepieces. In the frame A are two transverse rods, B B, on which thesprings O 0 work. Each of these springs is made of a single piece ofwire bent in the center to form the straight part a, and the parallelends I) b are twisted around the rod B, and extend in the oppositedirection from the straight part a. The extreme points of the ends b bare bent inward and inserted in the edges of the slat D, the slat alsoresting on the straight part a of the spring. Each slat thus rests ontwo springs, and each spring forms two bearings for the slat.

This arrangement of rods, springs, and slats maybe used on any bedstead,and hence I do not confine myself in their use to cots alone,

Upon each rod B are staples d 11, one for each spring, to keep thesprings from moving on the rod. On each end of each rod B is pivoted aleg, E, and the two legs on each rod are connected by rounds e e; and onthe inner side of each side piece of the frame A between the rod and theend of the frame is pivoted a brace, G, which is made of such a materialthat it will spring and fasten on a pin, 1', on the outside of the legE, when the same is thrown down, as shown in Fig. 2. The legs and bracescan be folded up in theframe when the cot is not in use. H representsthe headboard cut with a slot in each end for the insertion of the wireframe I, and the head-board held in place by the spring of the wire, theends of said wire being pivoted on the inside of the frame A.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is-- 1. The springs O O, constructedas herein described, and used in combination with the cross-rods B B andthe slats D D, as and for the purpose set forth.

2. The combination of the rails A A, crossrods B B, slats D D, springs GO, pivoted legs E E, and pivoted braces G G, all constructedsubstantially as described.

3. The combination of the rails A A, the pivoted frame I of springmetal, and the head board H provided with a groove at each end, all asshown and described.

In testimony that I claim the foregoing I have hereunto set my hand this30th day of January, 1873.

THOMAS JEFFERSON GRIFFIN.

Witnesses:

L. D. GARRATT, MORTIMER VAN Corr, PHILIP E. SMITH.

